WO2019036736A1 - Système de préparation destiné à fabriquer une tige d'enroulement pour un moteur électrique, et procédé de fabrication d'une tige d'enroulement - Google Patents

Système de préparation destiné à fabriquer une tige d'enroulement pour un moteur électrique, et procédé de fabrication d'une tige d'enroulement Download PDF

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Publication number
WO2019036736A1
WO2019036736A1 PCT/AT2018/060174 AT2018060174W WO2019036736A1 WO 2019036736 A1 WO2019036736 A1 WO 2019036736A1 AT 2018060174 W AT2018060174 W AT 2018060174W WO 2019036736 A1 WO2019036736 A1 WO 2019036736A1
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WO
WIPO (PCT)
Prior art keywords
winding rod
rod blank
production
stripping
machining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AT2018/060174
Other languages
German (de)
English (en)
Inventor
Andreas Falkner
Mladen-Mateo PRIMORAC
David SCHERRER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miba AG
Original Assignee
Miba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miba AG filed Critical Miba AG
Priority to EP18765352.2A priority Critical patent/EP3673570B1/fr
Priority to CN201880054228.5A priority patent/CN111357177A/zh
Publication of WO2019036736A1 publication Critical patent/WO2019036736A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
    • H02K15/0414—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines the windings consisting of separate elements, e.g. bars, segments or half coils
    • H02K15/0421—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines the windings consisting of separate elements, e.g. bars, segments or half coils and consisting of single conductors, e.g. hairpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely

Definitions

  • the invention relates to a manufacturing plant for producing a winding rod for an electric motor, wherein the manufacturing plant is designed for processing a winding rod blank, and a method for producing a winding rod for an electric motor.
  • AI winding rods are known, which are inserted into a laminated core of an electric motor.
  • Several winding rods form a winding of the electric motor in the electrically connected state.
  • the winding bars are rod-shaped and are connected at their ends in an electrically conductive manner to form the winding.
  • the individual winding rods have an enveloping insulation layer. It is known from the prior art to partially burn off this insulating layer by means of a laser.
  • the object of the present invention was to overcome the disadvantages of the prior art and to provide an apparatus and a method by means of which winding rods can be produced in a short cycle time.
  • a production plant for producing a winding rod for an electric motor wherein the production plant is designed for processing a winding rod blank having a core of an electrically conductive material and an insulating layer surrounding the core, the production plant comprising:
  • the stripping device has a machining tool for mechanical removal of the insulating layer of the winding rod blank.
  • the base surface and the top surface are stripped off at the stripping device, but also the side surfaces.
  • two further processing tools are formed, which are arranged at an angle of 90 ° offset from the processing tools already described and thus act on the side surfaces.
  • the other processing tools may have a similar structure as the processing tools already described.
  • the further processing tools are arranged in a further stripping device, which is upstream or downstream of the already described stripping device.
  • the base area and the cover area can be stripped of insulation in a first insulation device, and the side surfaces to be stripped away in a further stripping device.
  • the machining head of the machining tool of the stripping device is designed in the form of a broaching tool which has a machining direction transverse to the production direction, wherein at least one cutting edge, in particular a plurality of cutting edges arranged one behind the other in the machining direction, are formed.
  • a broaching tool has the simplest possible structure and can cut off the insulating layer from the winding rod blank by a linear movement in the machining direction.
  • several successively arranged cutting edges can serve to remove the insulating layer in a processing operation, however, in several stages.
  • the individual successively arranged cutting edges can in this case have a different machining depth, so that the entire thickness to be removed is divided between the individual cutting edges.
  • the machining tool of the stripping device has a first machining head with first cutting edges and has a second machining head with second cutting edges, the first cutting edges and the second cutting edges
  • the machining tool can not only remove the insulating layer in a first processing direction, but also in a second processing direction can remove the insulating layer.
  • the cycle time can be further shortened, since after completion of the machining operation in the first machining direction, the first machining head can be deactivated and the second machining head can be activated.
  • the machining tool can perform a machining operation in the second opposite machining direction immediately after the machining operation in the first machining direction.
  • the machining tool does not need to be moved back to a starting position after the machining process, but can start directly after processing of the winding rod blank another processing operation.
  • the first machining head is coupled to a first pneumatic cylinder and the second machining head is coupled to a second pneumatic cylinder, wherein the machining heads by means of the pneumatic cylinders in a feed direction 29iebar and thereby selectively can be activated.
  • the advantage here is that the machining heads can be moved easily and quickly in the feed direction by means of the pneumatic cylinder and thereby the cycle time can be kept low. Furthermore, it can be provided that a locking mechanism is formed for each of the two machining heads, whereby the machining head can be held by mechanical locking in its processing position.
  • the locking mechanism may for example comprise a wedge, which can be inserted by means of another pneumatic cylinder under the processing head and thus can serve as a mechanical stop for the processing skopf.
  • the cutting V-shaped are formed.
  • the advantage here is that is transported by the action of the lifted off the cutting chip during the machining process from the center of the cutting to the outside and thus the effective range of the cutting is kept as free as possible of chip residues.
  • the machining tool has a hold-down rail, which is arranged centrally of the cutting and has a sliding surface.
  • the advantage hereby is that can be held in position by the hold-down rail of the winding rod blank during the machining process. Thereby, the torque that is introduced by the machining process in the winding rod blank is intercepted.
  • the stripping has an upper tool shed for receiving an upper machining tool and a lower tool carriage for receiving a lower machining tool, wherein the two tool slides are guided by a linear guide transversely to the production direction.
  • an upper tool carriage and a lower tool carriage By using an upper tool carriage and a lower tool carriage, the base surface and the top surface of the winding rod blank can be machined simultaneously. Thus, in just one processing step, both the base surface and the top surface of the winding rod blank can be stripped.
  • the lower tool carriage and thus the lower machining tool and the upper tool carriage and thus the upper machining tool can basically have a similar structure.
  • the upper tool carriage or by means of the lower tool carriage machining s tools can be performed or moved in the machine direction.
  • the lower tool carriage and the upper tool carriage work counter to one another and therefore apply a counter-directed force to the winding rod blank.
  • the stripping has a drive motor, which serves to drive the upper tool carriage and the lower tool slide, wherein the upper tool slide has an upper rack and the lower tool shedding has a lower rack and wherein both racks with a gear in Engage, which is rotationally coupled to the drive motor, wherein the two tool slides are coupled to the gear so that upon rotation of the gear, the two tool slides are moved in opposite directions to each other.
  • a drive motor which serves to drive the upper tool carriage and the lower tool slide
  • the upper tool slide has an upper rack
  • the lower tool shedding has a lower rack and wherein both racks with a gear in Engage, which is rotationally coupled to the drive motor, wherein the two tool slides are coupled to the gear so that upon rotation of the gear, the two tool slides are moved in opposite directions to each other.
  • both tool slides can be moved by means of only one drive motor during the machining process.
  • the opposite movement of the two tool slides has the advantage that the machining tool of the lower tool carriage can act in a first machining direction and at the same time the machining tool of the upper tool carriage can act in a second machining direction, whereby the forces introduced by the machining tools into the winding rod blank are reduced counteract direction.
  • the drive motor is coupled to an adjusting spindle, which has two opposing pitches, wherein the upper Tool carriage is coupled to a spindle nut which engages in the region of the first slope and the lower tool pour is coupled to a spindle nut which engages in the region of the second pitch.
  • the drive motor is coupled to a toothed belt, wherein the upper tool is pouring coupled to a first portion of the toothed belt and the lower tool is pouring coupled to a second, receding portion of the toothed belt.
  • the drive motor is formed by an electric motor, in particular by a servomotor. The use of a servomotor has the advantage that the processing tools can be moved quickly and easily and can apply high forces and the end positions can still be approached with high accuracy.
  • a transmission is arranged between the drive motor and the gear.
  • the transmission is an angle gear.
  • a cutting device is formed for cutting the winding rod blank, wherein the cutting device of the Abisol liervor substances is downstream in the production direction, in particular that the cutting device comprises a punching tool.
  • the cutting device comprises a punching tool.
  • the punching tool is H-shaped, so that the winding rod blank can not only be separated in its longitudinal direction, but that at the same time portions of the side surfaces of the winding rod blank can be stripped by means of the punching tool.
  • the distance between the machining tool of the stripping and the punching tool corresponds to the multiple of a rod length, so that the processing steps of punching and stripping can be performed simultaneously.
  • This has the advantage that the period in which the winding bar blank has to be stopped for the stripping and stamping operation can be kept as low as possible.
  • a feed device is formed between the stripping device and the cutting device.
  • the feed device By means of the feed device, the winding rod blank, the stripping of the punching device can be supplied clocked.
  • the feed device has two clamping bands opposite one another, between which the winding rod is guided or clamped. The two clamping straps can each be guided around deflection rollers.
  • a measuring roller arrangement is formed between the stripping device and the cutting device.
  • the actually performed feed of the winding rod blank in the production direction can be determined and thus the accuracy of the lengthening of the winding rod blank can be improved.
  • the measuring roller arrangement has two opposing rollers, wherein a first roller can act as a counter-retaining roller and the second roller as a measuring roller.
  • the measuring roller has a gummed surface.
  • a straightening roller arrangement is designed for aligning the winding rod blank, wherein seen in the production direction, the straightening roller arrangement the stripping device is connected upstream.
  • the advantage here is that by the straightening roller assembly of the winding rod blank can be aligned before insertion into the stripping. Thus, any deformations of the winding rod blank can be straightened in the straightening roller assembly.
  • a buffer line is formed for the winding rod blank, wherein seen in the production direction, the buffer line of the stripping is upstream.
  • a rolling system is formed, by means of which the cross-sectional shape of the winding rod blank is variable.
  • the cross-sectional shape of the winding rod blank is changed together with the insulation. For example, it is possible to change the cross section from round to rectangular, from round to square, from square to rectangular, from rectangular to square.
  • an embossing device is formed, by means of which the cross section of the winding rod blank can be locally changed in an already stripped area.
  • the embossing device is arranged downstream of the stripping device in the production direction and introduces a depression in the cross section of the winding rod blank.
  • An advantage of the method according to the invention is that the machining tool for mechanical removal of the insulating layer may have a high processing speed compared to conventional methods. As a result, the cycle time when producing the winding rods can be kept as short as possible.
  • winding bars can be completed in a production process.
  • the partially stripped winding rod blank is clocked by means of a feed device supplied to the cutting device, wherein the cutting process and the stripping be performed simultaneously. This can shorten the processing time.
  • the stripping device is adjusted in the direction of production relative to the cutting device. This measure can ensure that the production steps cut to length and stripping can always be carried out at the same time.
  • the winding rod blank is fed by means of a feed continuously to the manufacturing facility and in a buffer line, especially in a material loop, is cached, so that the winding rod blank can be processed clocked in the stripping.
  • rotary tools in particular rotary punches, can be used for stripping and / or for cutting the winding rods.
  • the winding rod blank is moved continuously during the removal of a portion of the insulating layer in the production direction and the stripping during the stripping on synchronized with the winding rod blank in the production direction is moved.
  • the winding rod blank is moved continuously during the cutting of the winding rod blank in the production direction and the cutting device is moved during the cutting process synchronized with the winding rod blank in the production direction.
  • the stripping device or the cutting device must in this case be arranged displaceable on the production line.
  • the embodiment described here has the advantage that the winding rod blank can be advanced continuously.
  • a winding bar is a bar having in its core a conductive material surrounded by an insulating layer.
  • the winding rod preferably has a substantially rectangular or square cross-section, wherein a cover surface and a base are formed on two opposite side edges and side surfaces are formed on the two remaining side edges.
  • the core of the winding rod is formed from a copper material.
  • a winding rod blank has in its core a conductive material which is surrounded by an insulating layer.
  • the winding bar blank has a multiple length of a Winding bar on.
  • the winding rod blank is provided on large rolls with tens of meters of material length, or that the winding rod blank is endlessly manufactured directly at the production plant.
  • the machining direction of the first cutting edge and the machining direction of the second cutting edge are arranged in opposite directions.
  • FIG. 1 is a perspective view of an embodiment of a winding rod
  • FIG. 2 shows a cross section of a winding bar according to the section line II-II from FIG. 1;
  • FIG. 1 is a perspective view of an embodiment of a winding rod
  • FIG. 3 a an elevation of an embodiment of a manufacturing plant for producing winding bars
  • 3 b shows a plan view of an embodiment of a production plant for producing winding bars
  • FIG. 4 is a perspective view of an embodiment of a stripping device with partially hidden components.
  • FIG. 5 shows a perspective detailed view of the stripping device with partially hidden components
  • FIG. 6 is a sectional view of the stripping device;
  • FIG. 7 is a plan view of a machining head of the stripping apparatus;
  • FIG. Fig. 8 shows another embodiment of the mechanism for activating the machining heads;
  • Fig. 10 is a schematic representation of a cutting shear
  • Fig. 11 is a schematic representation of an embossing device.
  • Fig. 1 shows a perspective view of a winding rod 1, which is used for producing a winding in an electric motor.
  • the use of the winding rod 1 in an electric motor is described in DE 10 2015 217 922 A1.
  • the winding rod 1 has a rod length 2, which may be chosen differently depending on the size of the electric motor.
  • winding rods 1 for the same electric motor have different rod lengths 2 and thus also during the manufacturing process of the winding rods 1 different rod lengths 2 must be made.
  • FIG. 2 a cross section of the winding rod 1 according to the section line II-II of Fig. 1 is shown.
  • the winding rod 1 has a rectangular cross-section.
  • a base 3 and a top surface 4 are formed, which are arranged opposite to each other.
  • two side surfaces 5 are formed, which are also arranged opposite to each other.
  • the winding rod 1 has a rod thickness 6, which is defined by the distance of the base 3 and the top surface 4 to each other.
  • a bar width 7 of the winding bar 1 is defined by the distance between the two side surfaces 5 to each other.
  • the winding bar 1 has a core 8, which is surrounded by an insulating layer 9.
  • the core 8 is formed of an electrically conductive material such as copper.
  • the insulating layer 9 is applied for example in a dipping process directly on the core 8 and surrounds it in a constant wall thickness. As can be clearly seen from FIG. 1, it is provided that at the two longitudinal ends 10 of the winding bar 1, the insulating layer 9 is removed in regions, so that the core 8 of the winding bar 1 lies on the surface.
  • FIG. 3 shows a schematic representation of a possible construction of an exemplary embodiment of a production plant 11 for producing a winding rod 1 from a winding rod blank 12.
  • FIG. 3 a shows a schematic elevation of the production facility 11
  • FIG. 3 b shows a schematic outline of the production facility 11.
  • the winding rod blank 12 also has the core 8 and the insulating layer 9, wherein the winding rod blank 12 extends over a plurality of rod lengths 2 of the winding bar 1.
  • the winding rod blank 12 has a length of up to several thousand rod lengths 2 and is wound on a raw material roll.
  • winding bar blank 12 is produced directly in an upstream production plant and thus has an endless length.
  • the winding rod blank 12 may in this case have a clamping roller arrangement.
  • the supply device 13 is followed by a buffer section 14, in which the winding rod blank 12 can form a material loop 15.
  • the winding rod blank 12 can be fed continuously in the feeding device 13 and further processed in the remaining production line 11.
  • the buffer trecke 14 may be followed by a straightening roller assembly 16, in which the winding rod blank 12 is straightened.
  • the straightening roller assembly 16 may have a plurality of opposing elevational straightening rollers 17, which act on the base surface 3 and on the top surface 4 of the winding bar blank 12, respectively.
  • the straightening roller assembly 16 may have a plurality of opposing width straightening rollers 18, which act on the side surfaces 5 of the winding bar blank 12.
  • the straightening roller assembly 16 may be followed by a stripping device 19, which serves to partially remove the insulating layer 9 on the base 3 and the top surface 4 of the coil rod blank 12.
  • a stripping device 19 which serves to partially remove the insulating layer 9 on the base 3 and the top surface 4 of the coil rod blank 12.
  • the winding rod blank 12 is guided in the production direction 20 by the stripping device 19.
  • the production direction 20 lies parallel to the longitudinal extent of the winding rod blank 12.
  • a cleaning device 21 Downstream of the stripping device 19 may be provided a cleaning device 21 which serves to remove impurities in the stripped region of the winding rod blank 12.
  • the cleaning device 21 may have two opposing brush rollers 22, which act on the base surface 3 and on the top surface 4 of the winding rod blank 12.
  • the Bürstrollen 22 can rotate continuously, wherein the winding rod blank 12 is pulled through between the brush rollers 22.
  • a feed device 23 may be provided which serves for clocked withdrawal of the winding rod blank 12 from the stripping device 19.
  • the advancing device 23 may have a first clamping band 24 and a second clamping band 25, which are arranged opposite one another and act on the base surface 3 or on the top surface 4 of the winding rod blank 12.
  • the two clamping straps 24, 25 can each be held in position by deflection rollers 26, wherein individual ones of the deflection rollers 26 can simultaneously serve as drive rollers.
  • the two clamping bands 24, 25 are formed from a rubber material or have a rubberized surface, so that a good stiction between the winding rod blank 12 and the clamping bands 24, 25 can be achieved.
  • a measuring roller assembly 27 may be formed, which serves to verify the actual amount of change in position of the winding rod blank 12 during the feed.
  • the measuring roller assembly 27 may include a measuring roller 28 and a counter roller 29.
  • a cutting device 30 may be formed, which serves for cutting the winding rod blank 12 to individual winding rods 11.
  • the cutting device 30 can in particular have a punching tool 31, by means of which the actual cutting-off process can be carried out.
  • FIG. 3 it can be provided that the cleaning device 21, the feed device 23 and the measuring roller arrangement 27 are arranged between the stripping device 19 and the cutting device 30. The exact position of these individual devices or their order in the direction of production 20 may vary. As can further be seen from FIG.
  • the stripping device 19 is arranged on a linear guide 32, by means of which the stripping device 19 is displaceable in an adjustment direction 33 parallel to the production direction 20.
  • a distance 34 between the stripping device 19 and the cutting device 30 can be varied.
  • winding rods 1 with different rod lengths 2 can be manufactured at the production line, whereby it is always ensured by varying the distance 34 that the method steps can be stripped and cut to length can be carried out at the same time.
  • an embodiment of the stripping 19 is shown in a perspective view. For clarity, in Fig.
  • the linear guide 32 for adjusting the stripping 19 in the adjustment 33 at least two guide rails 35 which, with the Ground are coupled. Furthermore, at least two slides 36 are provided per guide rail 35, on which a machine frame of the stripping device 19 is arranged.
  • the machine frame serves for receiving or for connecting the individual components and can be designed, for example, as a bent sheet metal part, as a welded part or as a cast part.
  • an adjusting spindle 37 is formed which is coupled to a positioning motor 39 and serves for positioning the stripping device 19 in the adjustment direction 33.
  • an upper tool shedding 39 and a lower tool slide 40 are formed, on each of which a machining tool 41 for stripping the winding rod blank 12 is arranged.
  • the machining tool 41 of the upper tool carriage 39 is used to strip the cover surface 4 and the machining tool 41 of the lower tool carriage 40 serves to strip the base 3 of the winding rod blank 12th
  • the tool slides 39, 40 each have a linear guide 42, by means of which they are transversely to the feed direction 23 adjustable.
  • the linear guide 42 may each have a guide rail 43, which is fixed to the machine frame, not shown, and guided on the guide rail 43 carriage 44, to which the machining tool 41 is added.
  • the upper tool carriage 39 is coupled to an upper rack 45 and that the lower tool carriage 40 is coupled to a lower rack 46.
  • the two racks 45, 46 are used to position the bearing Processing tool 41.
  • a gear 47 is provided, which is coupled to the upper rack 45 and the lower rack 46.
  • the gear 47 is driven by a drive motor 48, which is shown only schematically in FIG. As can be seen from FIG. 4, it can be provided that the drive motor 48 is coupled to a gear 49, on which the gear 47 is arranged.
  • FIG. 6 shows a sectional view of the machining tool 41 according to the section line VI-VI from FIG. 5.
  • FIG. 6 shows only the machining tool 41 of the lower tool carriage 40.
  • FIG. 7 shows a plan view of the machining tool 41 of the lower tool carriage 40, wherein the machining tool 41 of the upper tool carriage 39 is indicated in dash-lined illustration. The exact function of the machining tool 41 will be described with reference to a synopsis of FIGS. 5, 6 and 7.
  • machining tools 51 of the upper tool shedding 39 and the lower tool carriage 40 are constructed substantially the same, the exact structure of the machining tool 41 is described by way of example with reference to the machining tool 41 of the lower tool carriage 40.
  • the machining tool 41 has a first machining head 50 with a first cutting edge 51 and a second machining head 52 with a second cutting edge 53.
  • the first cutting edge 51 acts in a first machining direction 54 and the second cutting edge 53 acts in a second machining direction 55.
  • the cutting edges 51, 53 are each V-shaped.
  • the two machining heads 50, 51 of the machining tool 41 are each adjustable in the feed direction 56. As a result, either the first processing head 50 or the second Processing head 52 can be activated.
  • the feed direction 56 is orthogonal to the production direction 20 and to the processing direction 54, 55 of the cutters 51, 53.
  • a hold-down rail 57 may be positioned, which has a sliding surface 58.
  • the machining head 50, 52 is activated when it is displaced so far in the feed direction 56 that the cutting edges 51, 53 protrude beyond the sliding surface 58 of the hold-down rail 57.
  • the first processing head 50 is activated and the second processing head 52 is deactivated.
  • the hold-down rail 57 is articulated in its longitudinal center and is held in position at both longitudinal ends by means of a spring-loaded ram 59.
  • first machining head 50 is displaceable in the feed direction 56 by means of a first pneumatic cylinder 60.
  • second processing head 52 is displaceable in the feed direction 56 by means of a second pneumatic cylinder 61.
  • the two processing heads 50, 52 can be selectively activated or deactivated.
  • a first locking device 62 is formed, which serves for locking the first machining head 50 in its active position.
  • a second blocking device 63 is formed for the second processing head 52.
  • the locking devices 62, 63 may each have a locking wedge 64, which is inserted under the machining head 50, 52.
  • the locking wedge 64 can be moved by means of a pneumatic cylinder 65.
  • a clamping device 67 may be provided, which serves to fix the coil rod blank 12 during stripping in its position.
  • the Clamping device 67 may also be actuated pneumatically and act on the top surface 4 of the winding rod blank 12.
  • the winding rod blank 12 is positioned in the production direction 20, then the winding rod blank 12 can be clamped by means of the clamping device 67.
  • the first machining head 50 of the upper tool carriage 39 and also the first machining head 50 of the lower tool carriage 50 can be displaced in the feed direction 56 so that they are in an active position.
  • the two second processing heads 52 of the upper tool carriage 39 and the lower tool carriage 40 are disengaged at the same time. Subsequently, the first processing heads 50 of the two tool slides 39, 40 can be locked by means of the locking device 62.
  • the two tool carriages 39, 40 are respectively moved in the machining direction 54 of the first cutting edge and thereby pulled against the winding rod blank 12 in the same manner.
  • the upper tool carriage 39 processes the top surface 4 of the winding rod blank 12 and the lower tool carriage 40, the base 3 of the winding rod blank 12.
  • the insulating layer 9 on the winding rod blank 12 are partially removed.
  • the insulating layer 9 is removed in the region of the cutting edge 51 and a web stops in the region of the hold-down rail 57, on which the insulating layer 9 is not removed.
  • the winding rod blank 12 is additionally held by the hold-down rails 57 in its position.
  • the second machining heads 52 can be activated on both tool carriages 39, 40 and the first machining heads 50 can be deactivated.
  • the winding rod blank 12 can be moved according to the required rod length 2 of the produced winding rod 1 in the production direction 20.
  • the clamping device 67 must be solved accordingly and closed again.
  • the two tool carriages 39, 40 can be displaced back into their starting position in the machining direction 55 of the second cutting edge 53, a stripping process being likewise carried out on the winding rod blank 12 here. Now the described process can be restarted.
  • FIG. 8 shows a schematic representation of another possible embodiment of a tool carriage 39, 40.
  • the two machining heads 50, 52 are coupled to one another by means of a lever 68 which is located in a center between the two machining heads 50, 52 arranged pivot point 69 is stored.
  • a lever 68 which is located in a center between the two machining heads 50, 52 arranged pivot point 69 is stored.
  • a locking device may also be provided which serves to lock the machining heads 50, 52.
  • 9 shows a schematic illustration of a possible embodiment of a cutting device 30.
  • the cutting device 30 has a punching tool.
  • the punching tool may comprise a die 71, on which the winding rod blank 12 rests.
  • the die 71 has a recess 72, which is adapted in its shape to a stamp, not shown.
  • the shape of the recess 72, as shown in FIG. 9 can be selected H-shaped, so that the winding rod blank 12 can be divided into individual winding bars 1. At the same time, the side surfaces 5 at the longitudinal ends 10 of the winding rod blank 12 can be stripped off.
  • the recess 72 has two mutually parallel legs 73, which are connected to one another by a web 74.
  • the legs 73 are arranged at a distance 75 from each other.
  • the distance 75 is smaller than the bar width 7.
  • the punch is surrounded by a hold-down, which is coupled in movement with the punch.
  • the hold-down device is supported on the punch by means of a spring mechanism.
  • the cutting device 30 is designed in the form of a cutting shear, wherein a movable knife 76 is formed, by means of which the individual winding bars 1 can be separated.
  • FIG. 11 shows a schematic illustration of a possible embodiment of an embossing device 77 for introducing a deformation, in particular a sink, into the winding bar blank 12.
  • the embossing device 77 may comprise an embossing stamp 78 which is designed to introduce the deformation into the winding bar blank 12.
  • the deformation may be introduced into the coil bar blank 12 at exactly one area where the coil bar blank 12 is subsequently divided to obtain a single coil bar 1. This separation is shown by a dividing line 79.
  • a winding bar 1 can be produced, which has a notch at its longitudinal end 10.
  • Buffer section 44 carriages
  • Production direction 50 first processing head
  • first clamping band 54 processing direction first second clamping band cutting edge

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  • Manufacturing & Machinery (AREA)
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Abstract

L'invention concerne un système de préparation (11) destiné à fabriquer une tige d'enroulement (1) pour un moteur électrique, le système de préparation (11) étant destiné au traitement d'une ébauche (12) de tige d'enroulement, laquelle comporte un noyau (8) en matériau électriquement conducteur et une couche isolante (9) gainant le noyau (8). Le système de préparation (11) comprend : - un dispositif de dénudage (19) qui sert à éliminer partiellement la couche isolante (9) au niveau d'une surface fondamentale (3) et d'une surface de revêtement (4) de l'ébauche (12) de tige d'enroulement, l'ébauche (12) de tige d'enroulement pouvant être introduite dans la direction de production (20) à travers le dispositif de dénudage (19). Le dispositif de dénudage (19) comporte un outil d'usinage (41) pour le retrait mécanique de la couche isolante (9) de l'ébauche (12) de tige d'enroulement.
PCT/AT2018/060174 2017-08-23 2018-08-03 Système de préparation destiné à fabriquer une tige d'enroulement pour un moteur électrique, et procédé de fabrication d'une tige d'enroulement Ceased WO2019036736A1 (fr)

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EP18765352.2A EP3673570B1 (fr) 2017-08-23 2018-08-03 Système de préparation destiné à fabriquer une tige d'enroulement pour un moteur électrique, et procédé de fabrication d'une tige d'enroulement
CN201880054228.5A CN111357177A (zh) 2017-08-23 2018-08-03 用于制造电机的绕组线棒的制造设备以及用于制造绕组线棒的方法

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ATA50704/2017 2017-08-23
AT507042017A AT520364B1 (de) 2017-08-23 2017-08-23 Fertigungsanlage zum Herstellen eines Wicklungsstabes für einen Elektromotor, sowie Verfahren zum Herstellen des Wicklungsstabes

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CN112953140A (zh) * 2021-04-26 2021-06-11 长沙华锐机电实业有限公司 一种新能源汽车扁线发卡电机扁线自动下线成型机
EP3910767A1 (fr) * 2020-05-13 2021-11-17 Gehring Technologies GmbH + Co. KG Dispositif et procédé de dénudage de pièces conductrices
CN114552905A (zh) * 2022-02-24 2022-05-27 昆山富士龙自动化有限公司 自动化定子装配装置
DE102022202244B3 (de) 2022-03-04 2023-09-14 Thyssenkrupp Ag Vorrichtung und Verfahren zum Abisolieren von mit einer elektrischen Isolierung versehenem und zur Herstellung von Hairpins gefördertem Endlosdraht

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JP7700744B2 (ja) * 2022-07-08 2025-07-01 トヨタ自動車株式会社 線状材料製造装置

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JP6252865B2 (ja) * 2014-08-20 2017-12-27 住友電装株式会社 コイル製造方法、コイル製造装置
JP6324541B2 (ja) * 2014-12-26 2018-05-16 日立オートモティブシステムズ株式会社 コイル成形装置及びコイル成形方法

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EP3021467A1 (fr) * 2014-11-14 2016-05-18 Magneti Marelli S.p.A. Procédé et station pour la construction d'un enroulement de stator avec barres rigides pour une machine électrique rotative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3910767A1 (fr) * 2020-05-13 2021-11-17 Gehring Technologies GmbH + Co. KG Dispositif et procédé de dénudage de pièces conductrices
CN112953140A (zh) * 2021-04-26 2021-06-11 长沙华锐机电实业有限公司 一种新能源汽车扁线发卡电机扁线自动下线成型机
CN114552905A (zh) * 2022-02-24 2022-05-27 昆山富士龙自动化有限公司 自动化定子装配装置
DE102022202244B3 (de) 2022-03-04 2023-09-14 Thyssenkrupp Ag Vorrichtung und Verfahren zum Abisolieren von mit einer elektrischen Isolierung versehenem und zur Herstellung von Hairpins gefördertem Endlosdraht

Also Published As

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EP3673570A1 (fr) 2020-07-01
AT520364A1 (de) 2019-03-15
AT520364B1 (de) 2019-11-15
CN111357177A (zh) 2020-06-30
EP3673570B1 (fr) 2022-12-21

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